Early prevention of cutter wear of combine harvester

Knife is a key component to ensure the excellent operation performance of the harvester, and it is also a part that has many faults and is easily worn out. Grasp the correct operation and use methods, take appropriate preventive measures, better prevent early wear and tear of the knife, extend the service life, and it is very important to maintain good work performance. Do the following for this purpose.

1. The soil and weeds around the cutter should be removed in time after the harvesting operation. The cutting knife should be always lubricated and lubricated. Before the refueling, the soil and weeds should be cleaned to ensure that the lubricant directly contacts the moving surface of the cutting knife.

2. For every 30 to 50 hours of operation, the cutter must be removed from the header, and the soil that will remain on the blade when it is decomposed will be removed, and the residue of the rice chips will be removed and cleaned and lubricated. During assembly, check that the clearance between the movable knife and the stationary knife is maintained at 0 to 0.5 mm. In general, the cutter will wear after use, so it is necessary to reduce the adjustment pad. After adjusting the clearance, it is advisable to push or pull the moving blade holder with your hand. If it is too light, the gap is too large, it is not easy to cut, if it is too tight, it is difficult to drive, the system load is too heavy, and the cutter is easy to wear. After the cutter is installed in the header, it must be confirmed that the reciprocating motion is normal before it can be put into use.

3, should ensure that the moving blade coincides with the center of the fixed blade. Deviations less than 1.5mm are allowed. If the deviation is too large, adjust the length of the crank connecting bolt.

4. Always check the movement of the knife drive mechanism. Found that the swing is too large, should adjust the bearing gap or replace the bearing.

5, cutting can not be too low when harvesting, generally the distance between the front end of the divider plate and the ground is about 10cm. Too low tiller is easy to muddy, the knife is easy to wear, the crop is pressed off, it is too easy to miss the cut, and the tiller pushes down the crop.

6, in the operation before and after harvest should always pay attention to see whether there are any hard objects in the field, such as branches, stones, iron rods, iron wire and other objects. Otherwise it will lead to damage to the blade.

Combine harvester maintenance

Combine harvesters are large-scale agricultural machines with a complex structure and large investment. They use a short time each year and have a long storage period. Therefore, after the completion of the operation, it is necessary to conduct timely maintenance of the storage so that it can maintain a good technical state to prolong its service life. Now the knowledge of its storage and maintenance is introduced as follows:

1. Clean up the dirt, stalks, seeds and other impurities inside and outside the machine and rinse them with water. After drying, store in the store.

2. Remove all the triangular tape, wipe it clean, apply talcum powder, attach the label, and hang it on the wall inside the warehouse; remove the chain and put it in diesel to clean it, apply it with oil or butter, wrap it in kraft paper, and put it in a ventilated and dry place. Department.

3. Check all the consumables on the machine, such as the auger telescopic rod cover, moving blades, friction plates, roller spikes, and fixed nails. If excessive wear, deformation, or damage is found, repair or replacement should be performed.

4. Add butter to each rotating bearing; apply oil or butter to friction parts such as cutters, clutch claws, auger extension claws, adjustment bolts, etc. to prevent corrosion; paint has worn away rusted parts and should be removed After rust, repaint it.

5. The combined harvester is lifted up by the square wood to move the front and rear tires off the ground; the harvesting table and the pull-out wheel are lowered to the lowest position, and are placed on the wood stably, so that the hydraulic system does not bear the load.

6. Remove the battery and store it separately. Preservation method: After the battery is fully charged, pour out the electrolyte, change into distilled water, park for 6 hours, recharge for 4 hours, replace distilled water, recharge for 2 hours, then pour distilled water, and then fill with fresh distilled water. Store.

7. Remove the main electrical components such as generators and lighting headlamps, wipe them clean, and store them separately to prevent damage.

8. Turn on the engine's water tank, airframe, and oil cooler drain switch, and drain the net cooling water: release the fuel in the fuel tank and the oil in the oil pan; use the plastic cloth to put the air filter, exhaust nozzle, and fuel tank filler Wrap the other parts; inject proper amount of clean oil into the cylinder and turn the crankshaft several times.

9. The engine crankshaft is rotated once a month, and a small amount of clean oil is injected into the cylinder; the valve operating handle is distributed to vibrate several times back and forth.

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